dubbo:argument

dubbo:argument element

Method argument configuration. The corresponding class：org.apache.dubbo.config.ArgumentConfig. This tag is child of <dubbo:method>, which is for feature description of method argument, such as:

<dubbo:method name="findXxx" timeout="3000" retries="2">
    <dubbo:argument index="0" callback="true" />
</dubbo:method>

Property	Corresponding URL parameter	Type	Requisite	Effect	Description	Compatibility
index		int	Y	identification	method name	above 2.0.6
type		String	Index and type choose one	identification	Find index of argument by it	above 2.0.6
callback	<metodName><index>.retries	boolean	N	service governance	Mark whether this argument is a callback service. If true, provider will generate reverse proxy,which can invoke consumer in turn. Generally for event pushing	above 2.0.6

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